Spirit World Redone

I just loved the idea behind the mod but there were some things I wanted to improve, so I made my own version.

In this release, I changed the entrace to Spirit World to a portal like the one at Skuldafn because I just love the animation of that portal and I've been wainting for the CK to make this possible. (Took me a LOT of time to get the scripting right)

You need to have a Dragon Priest Staff in order to open it, and you can then retrieve it and close the portal.